Inventory
An (r, Q) inventory policy: orders reorderQty units when the inventory position falls to reorderPoint or below.
When the position is at or below the reorder point, the policy orders n × reorderQty with n = floor((reorderPoint − position) / reorderQty) + 1, the fewest whole batches that lift the position strictly above reorderPoint, so that afterwards it lies in reorderPoint + 1 .. reorderPoint + reorderQty. If separateBatchOrders is true the n batches are ordered as n separate requests; otherwise they go in one consolidated order.
With lot-sized demand, when every demand is a multiple of some lot size m, the difference between the position and the reorder point keeps its remainder modulo m for the whole run. Long-run results then depend on the initial on-hand as well as on the reorder point and quantity. Starting each replication at reorderPoint + reorderQty avoids this, and an optimizer that changes the reorder point should change the initial on-hand with it.
See sc.inventorylayer.InventoryPolicyReorderPointReorderQuantity
Constructors
Properties
The R = (delta − Q) parameterization used by optimization controls — sets the reorder point so that R + Q = delta.
The reorder quantity Q (≥ 1).
If true, when a deep drop requires multiple batches to clear the reorder point, place n separate replenishment requests of size reorderQty (rather than one consolidated n × reorderQty order).
Functions
Decide whether to place a replenishment order now.
Snapshot the current parameter values.
parameters[0] = reorder point (must be ≥ −reorderQty), parameters[1] = reorder quantity (must be ≥ 1).
Two-argument convenience for setInitialPolicyParameters.
Change the policy parameters during a replication.